I wanted to share this recipe with everyone:
1 package plain nonfat yogurt (or ff greek yogurt)
1 package good seasons italian dressing mix
1 tbs Extra Virgin Olive oil
1 tbs vinegar
Mix all ingredients together. This can also be done with hidden valley ranch mix too, I usually add a bit of light mayo for ranch. I also mix yogurt with balsamic vinegar, dijon mustard, and spices (onion powder, garlic powder, basil, oregano, salt and pepper) for a creamy balsamic vinagrette.